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APPARATUS FOR WRITING MUSIC.

No. 484,262. I Patented Oct. 11, 1892.

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No. 484,262. Patented Oct. 11, 1892.

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A. TESSARO. APPARATUS FOR WRITING MUSIC.

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A. TESSARO. APPARATUS FOR WRITING MUSIC.

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No. 484,262. Patented 001;. 11, 18 92.

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APPARATUS FOR WRITING MUSIC.

No. 484,262. Patented Oct. 11, 1892.

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APPARATUS FOR WRITING MUSIC. No. 484,262; Patented Oct. 11, 1892.

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APPARATUS FOR WRITING MUSIC.

Patented Oct. 11, 1892.

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No. 484,262. Patented Oct; 1-1, 1892.

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No. 484,262. Patented 001:. 11, 1892.

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A. TESSARO. APPARATUS FOR WRITING MUSIC. No. 484,262. Patented 001;. 11,1892.

WITNESSES INVENTOH m Aw 21W UNITED STATES ANGELO TESSARO, OF PADUA,

PATENT @rrrcn. I

ITALY.

APPARATUS FOR WRITING MUSIC.

SPECIFICATION forming part of Letters Patent No. 484,262, dated October11, 1892.

Application filed April 2. 1890. Serial No. 346,364. (No model.)

To all whom it may concern.-

Be it known that I, ANGELO TESSARO, a subject of the King of Italy, anda resident of Padua, Italy, have invented a new and useful ImprovedApparatus for WVriting Music, of which the following is a specification,reference being had to the accompanying drawings.

This invention relates to an improved apparatus for writing music uponsuitable material.

By employing the new apparatus the cost of printed music is greatlyreduced as compared with that of the systems in general use. Anotheradvantage 'is that it admits of the employmentofcomparatively-unskilledworkmen. The lines, notes, and signs used in music are not placed,traced, or engraved, as is usual, by hand, a system which demands theemployment of a highly-trained working staff; but the tracing iseffected by means .of the apparatus represented in the annexed drawings.

Figure 1 is a plan of the frame of the machine. Fig. 2 is a section ofthe same on line any of Fig. 1. Fig. 3 is a detail plan view. Fig. 4 isa vertical section of the same on line .2 c, Fig. 3. Fig. 5 is alongitudinal sectional View of side B D of-the frame with the partsmounted thereon. Figs. 6 and 6 are detail views. Figs. 7 and 8 are viewsof spring a. Fig. 9 is a detail sectional view of the device for movingcross-bar G. Fig. 10 is a plan View of the same. Fig. 11 is a sideelevation of cross-bar G. Fig. 11 is a sectional view of the parts shownin Figs. 2, 4, and 11 combined in proper relation. Fig. 12 is a planview of the cross-bar G. Fig. 13 is a detail view of the rack and pinionfor moving cross-bar G. Fig. 14 is a plan of the same. Fig. 15 is a viewof the binding-block for holding block L in place. Fig. 16 is a sideelevation of sliding block L and its connections, and Fig. 17 is a planof the same. Fig. 18 is a plan view of the machine with the spacingdevice attached. Figs. 19, 20, and 21 are respectively side, front, andplan views of the ruling device. Fig. 22 is a side elevation of thestamping-device. Fig. 23 is a rear view of the same withthe'inking-roller attached. Fig. 24. is a sectional side view of part ofthe stamping device. Figs. 25 and 26 are detail views. Fig. 27 is theframe for attaching the stamping device to cross-bar G. Figs. 28, 29,30, and 31 are views of the type-carrier. Fig. 82 represents some of thetype. Fig. 33 represents a top, side, and bottom view of. the top knobr. Fig. 34 represents similar views of type-wheel 19'. Fig. 35represents detail views of the type-carrier. Fig. 36 is a side View, andFig. 37 is a plan view, of the spacing devices. Fig. 38 is a detail ofone form of roller. Fig. 39 is a plan view of the machine with thestamping device attached thereon. Fig. 40 is a view similar to Fig. 18with the plate F at an angle. Fig. 41 is a plan view of the machine withthe ruling device attached.

The entire apparatus is mountedon a metallic frame A B O D, the plan ofwhich is represented in Fig. 1, as seen from above. Fig. 2 is a sectionof the same frame on the linem y. The central part of the frame consistsof a cross-bar A inthe center of which is a circular cavity E, and inthe periphery of this there are made notches. In Fig. 2 is seen atransverse section, with the grooves a b extending all along the sides AB O D of the frame. When the apparatus is put in working position, thesurface of the frame on which are formed the grooves a b faces upwardly,while the prolongatious l 2 of its lateral Walls A B O D rest upon thework-table.

The cavity E is intended to receive the parts represented in plan, asseen from below at Fig. 3 and in vertical section on the line'z a; inFig. 4. The parts enter the cavity E of the principal frame,Figs. 1 and2. The annular edge plan of the collar-bearing e, Figs. 3 and 4, restsand is bolted at n on the annular edge of the cavity E, Fig. 2, placedon a lower level than that of the surface of the frame bearing thegrooves a and b. The collarbearing e receives a conical pivotd, adaptedto turn in said bearing 6. To the lower end of the pivot d a plate m isbolted by means of the central screw 1'. Above the bearing e the pivot dhas formed therewith a platform 3, which can turn in the interior of thecavity E, Fig. 1, of the principal frame. On the platform, whichterminates above the part d, is mounted an iron plate F, Figs. 3 and 4,hearing directly the plate of zinc or other metal on which is fixed thematerial on which the musical signs or notes are to be traced. The

plate F when the apparatus is set in order is on a higher level thanthat of the upper surface of the main frame, on which the grooves a andb are traced. On the lower surface of F, Figs. 3 and 4, are fixed thegibs c. which can slide along the rectilinear sides of the platformcarried by the pivot 01. Thus I am' enabled to give to F, andconsequently to the sheet of paper, a displacement perpendicular to theplane of Fig. 4. In whatever position it may happen to stop in itscourse along the rectilinear sides of the platform the plate F remainsin its place by virtue of its own Weight without the need of any specialstop. The lower part of the bearing e issurrounded by a ring g, providedwith a pin 4, (visible in Fig. 3,) which enters the branches of alateral fork 5 in prolongation of the plate m: To the ringg are unitedtwo converging arms, (marked by the letter g, Fig. 3,) which end in asocket g at their inner ends. This socket is traversed by a rod 71,which endsin acrank Z, keyed upon it. This crank is not visible in Figs.3 and 4, but it may be seen in Figs. 18' and 41. The rod 71-, Figs. 3and 4, is threaded at the interior end and penetrates the ring g, whichacts as a female screw. The interior extremity of the rod h is providedwith a key f, resting in a notch corresponding to it and formed in thethickness of the bearing e.

It follows from the above description that when the key f is withdrawnfrom its corresponding notch the ring g can be turned by means of therod h and the crank Z around the bearing e, and consequently around thevertical axis of the device. The ring 9' turns with it in its movementthe plate m, and the plate F also turns therewith.

The rotation of g, and consequently that of F,is limited, because therod hs'trikes against the wall A G or BD of the main frame every timethat it reaches one or the other end of its travel. The movement of theplate F upon the pivot-plate d is similarly limited, because the gibs astrike against the interior periphery of the cavity E of this frame. Nowsuppose the crank lto be turned so as to coinmunicate a rotatorymovement to the 'rod h aroundits axis. If this movement takes place inthe due direction, the screw-threads with which h isprovided enter thesocket g of part 9 and the keyf penetrates the notch 7 in the bearing e.The entire mechanism then remains fixed to the bearing 6, anconsequently becomes absolutely immovable so far as the rotation isconcerned. The rotationof the plate F is thus entirely prevented. Therefore the following results can be obtained by the contrivancehereinbeforedescribed: First, plate F may have a movement of translationparallel to the rectilinear sides of the upper surface of the part d;second, plate F maybe caused to turn around the vertical axis of theapparatus when f is withdrawn from the corresponding notch in thebearing e; third, the

position of plate F can be fixed so far as r0- tation is concerned.

Fig. 18 presents a complete plan of the apparatus when ready to tracethe lines which form the statf on the sheet of paper. Here are shown therod h and the crank Z. The plate F is represented in dotted outline inthe middle of the frame. The zinc plate 8 and the sheet of paper 9 areplaced upon it. The parts of the frame comprised between the centralpivot d and the frame represented in open-work at Fig. 1 are covered inFig. 18 with a thin plate of sheet-iron f". This plate provides a fiatsurface or table. The grooves a and b, Fig. 2, extend the whole lengthof the sides A O B D.

A transverse perpendicular section of the side G A, Fig. 18, of theapparatus is shown ih Fig. 6, which shows one of the walls of the mainframe with one of the longitudinal grooves a b, Fig. 1, which extendsfor the enti re length of this wall.

An inspection of Figs. 6 and 18 will show that when the apparatus isready for actioh the upper surface of the side A O of the frame, Fig.18, is surmounted by a bar 19, bolted iipon it. Fig. 6 shows these partsin front elevation. Along the bar 19' slide the movable clamps k,clasping p, which clamps can be secured to bar 0 by means ofthumb-screws 7b. The clamps k may be fixed in various positions, to bedetermined by circumstances, by means of the parts of a graduated scalesituated on bar 1), Fig. 18. The other side 8 D of the apparatus isshown in transverse section in part plan in Fig. 10 on an enlarged scaleas compared with that of Fig. 18 and at Fig. 5 in elevation partlybroken awayand partly in section. The parts which surmount the upperplane of the side B D or lower side of the frame are, first, a toothedrack 0. (See t; 1e transverse section in Fig. 9, front elevation in Fig.5, detail in Fig. 14, and end'view ih Fig. 13.) A barp surmounts therack and is provided with a graduated scale along its ihterior side. Thebar 12 is surmounted by another piece 6' for a portion of its length,Figs. 9 and 18; but this is not screwed directly on the upper plane ofthe side B D of the main frame, as is, on the contrary, the case with pand o. Exteriorly on the side B D of the frame, Fig. 18, and all alongit is placed upright a bar 1", Fig. 18 in plan and Fig. 9 in verticalsection, which is held in its place by three screwsq q, Figs. 18 and 9.A spiral sprin g 10, Fig. 9, is interposed between the lateral wall ofthe frame and the bar so that, the screws q being all well tightened,there still remains a space between 1' and the wall above mentioned. Inthis space, which is indicatedbyt-heletters,formingalongitudinal'slitalong the vertical exterior wallof the frame, the graduated scale e, in the form of an angleiron, isinserted. The graduations of this scale correspond to those of a musicalmeasure. This scale is held in its place by the ICO screws q, Fig. 9,with one of their sides (the vertical side) in the space between the bar4" and the exterior faces of 0 and 19, forming a continuation of theexterior wall of the frame, while the other side (the horizontal side)lies directly upon the plate 19, Fig. 9. The grooves a and b of Fig. 2thus form two covered channels. These two channels serve to conduct thesliding bar G, Fig. 18, which I call the main sliding carrier, intendedto be moved along the main frame. The main carrier G is shown in detailand separately in Figs. 11 and 12, the first of which is a frontelevation and the second a plan seen from above. Arms 16 t are attachedat a right angle thereto. These two armst t slide in the coveredchannels formed by the grooves runningalong the sides of the apparatus.As may be seen on consulting Fig. 11, the armst 15 are beveled on theirlower faces and adapted to the form of the grooves in which they areintendedto slide. Fig. 6 shows in transverse section the arm t insertedinto its corresponding groove in the frame. Figs. 9 and 13 likewise showthe arm 6 inserted into the opposite groove. A front elevation of thearm 16' is visible in Fig. 5, while in Fig. 6 is seenan elevation of thearm 75. In these two figures the main carrier G is shown in transversesection. These two figures demonstrate that the arms t and are not incontact at their lower part with the grooves of the frame, exceptattheir extremities, so that the frame formed by the parts G, t, and t issupported on four points placed two and two at the extremities of eachof the arms I, and 25. In order that the frame may be guided perfectlythroughout its move ment, the arms 25 and t carry on their upper facesscrews 17', Fig. 6, which can be turned in such a way as to press theirheads againstthe lower faces of parts 19' and 19.

From the upper face of the carrier G projects at its extremity on theside of t, at its lower extremity toward B D, Fig. 18, a fixed pinending in the knob to, Figs. 9, l1, and 13 in elevation, Figs. 10, 12,14, and 18 in plan.

' On the said pin is mounted and can turn a pinion H, Figs. 9,11, and13, the nave of which forms one sole piece with the washer V, Figs. 9,11, and 13 in elevation, and Figs. 10, 12, 14, and 18 in plan. WVhen thecarrier G and its arms it are in their places and the latter slide intheir respective grooves in the frame, the pinion H catches the teeth ofthe rack 0.

The carrier G may be moved rapidlyby grasping the knobs and pressing thesame laterally along the main frame,in which case the pinion, meshingwith the rack, will turn freely on its axis. If it is desired to securean accurate adjustment of the carrier, it is done by means of thepinion, which isturned by grasping the washer V, and thus the carrierwill be moved only in proportion totheroiation of the pinion, which, asbefore stated, engages the stationary rack.

As may be seen in detail at Fig. 5, the arm t carries in a slit made inits upper face a flat spring a. (Shown separately in elevation in Fig. 7and in plan in Fig. 8.) One extremity of the spring a is fixed on thearm t andthe other ends in two branches, between which is pivoted aroller 6 which the spring a tends to press against the lower face of therack 0. The arm 25 carries a. projection z. (Shown in elevation, Fig. 5,and in, plan, Fig. 12.) In

this is screwed the little vertical shaft y, Fig.

5, passing through the knob 00, and which traverses at c" the spring ct,which is thus inclosed between two shoulders of the stem y, Fig. 8. Itfollows that by turning the knob x we can tighten at pleasure the rollerFigs. 5 and 8, against the lower face of the rack 0 or detach it, andtherefore render movable or immovable the carrier G. On the same arm tcan slide the indicator (1, Fig. 5 in elevation and Fig. 18 in plan,which is provided with a slit in which are inserted two pins 11 and 12,projecting from the vertical face of t and which is kept in its place bya thumb-screw13. This indicator is rightangled in shape, so that itshorizontal arm surmounts the plate p. A broad plate I,provided withdivisions, as seen in Fig. 18, may be provided on the side O D of theframe.

The carrier G is dovetailed in transverse section, Figs. 5 and 6. ceivea sliding block L. (Shownin Fig. 16 in elevation and in Fig. 17 inhorizontal plan.) The block L may be fixed on G by means of the leverhaving a handle g, Figs. 16 and 17, setting in motion a screw whichpenetrates the thickness of L and exerts its pressure on G. When thislever g is turned and the screw fixed on its axis is drawn back, theblock L is free to slide with gentle friction It is intended to retooalong the carrier G. The block L has in its upper face another dovetailslot like the one seen below in the same piece and intended to receivethe bar G. In this slot can slide the contained, the displacement of Pwith regard.

to the block L being effected with the precision of a micrometricmovement. This displacement is regulated by bringing the indicator m,Fig. 17, into contact with the graduated scale 0', Figs. 17 and 18,fixed to the block Lby means of, the screw it and changeable whenrequired. Into the lower part of the sliding block L is fitted a pointeror indi- I cator g, which can slide in its sliding-groove,

tee

from which it can be almost entirely with- I drawn. By means of thescrew Q, I fasten on the plate P the different parts which I am about todescribe.

Tl e ruli ng device, (Figs. 3,6, 37, and i This apparatus is put inoperation by fixing on the sliding block L, Figs. 15 and 17, the plateT, Figs. 36 and 37, by means of the slit 14 (visible in Fig. 37) in themanner just described. From the plate T project two arms, of which thelongest is V and the shortest Z. These two arms sustain at s" the pivotsaround which revolves the frame U, on which the most important parts ofthe apparatus are mounted. The-frameU carries in its turn at its rearextremity the bearings r, in which rotates the shaft E. From the middleof this rises the vertical stem q, which traverses the collar-bearing BThe bearing B is sustained byabar O, fixed to the two arms V Z, formingpart of the plate T. It is therefore independent of the frame U.

The essential parts of the ruling device are, first, the inking-rollerS, Fig. 37; second, the ruling-disk, which may have either the formrepresented in 11", Fig. 37, or that shown separately in 3'', Fig. 38.With the disk t''Ican trace at the same time five parallel linescorresponding to the musical stafl. The disk j', on the contrary, isintended to replace 11' and to be mounted on the spot occupied byi' inFig. 37 when it is my intention to trace isolated lines only.

The inking-rollers is formed of a composition obtained from a mixture ofpaste and honey. Before mountingit in its place in the ruling device theroller is inked by rubbing on a marble table moistened with the inkusually employed for transfer operations. The inking-roller S is mountedon an axle 90", provided with a cylindrical pivot at one of itsextremities andathreaded pivot at the other. The frame U presentscertain cavities in correspondence at the points 15 where itis traversedby the axle w"of the roller S. The piv' ots of the axle m" enter thebearings u", fixed on the frame U. These latter-can be moved in alongitudinal direction by meansof the endslots 20, through which passthe set-screws 21. (See Figs.38 and 39.) These'bearings are covered bythe movable lids v and e, which are secured on said bearings by screw22. Of these two bearings that which is intended to receivethethreadedpivotisthreadedinitsturnin such a way as to act as a'femalescrew, wherefore the rotation'of the inking-roller S is accompanied by atransport movement in the direction of its axis. It will thus be seenthat by this horizontal movement of the roller the surface will notbecome worn in one place more than in another. This construction is setforth in Figs. 23 and 27, especially the former figure. The frame U istraversed on one of its sides and precisely at a' by a socket e, whichis screwed into Uand ends exteriorly in a broad head, and toward theinterior of the frame U is a helicoidal rim occupying the fourth part ofthe periphery of the socket e'. In the interior of this socket isinserted a little stem c' having at one of its extremities the crank 12'and ending in a point at the other. From this little stem 0' projects astud f A spiral spring d', surj, Fig. 38, is pivoted.

rounding the stem ,c', is insertedbetween the socket e' and the nave ofthe crank 11'. Thespring helps to keep in place the stud f, adhering tothe exterior rim of the socket e'. If I turn the crank b",f' beingforced to follow the circumference of the helicoidal surface whichbounds the socket interiorly, the stem 0 is displaced axially. As soonasf has run over the Whole of the helicoidal circumference the stem 0comes to a stop. In order to bring it back, the crank 12' must be turnedin the opposite direction. The interior crossbar 18 of the frameUcarries at about half its length a support y after the form of a T,which can be adjusted and fixed in its place by means of screws. On thesurface of that arm of y" which extends toward the interior of the frameU and on the same side as the socket e a pointed notch is made, whichwill be found precisely on the prolongation of the axis of the stem c'.Itis between the cavity at y" and the pointed extremity of the stem 0"that the ruling-disk 71, Fig. 37, or

These disks are usually made of ivory. They are mounted on side y andpresent a' small cavity at the side 0''. The ruling-disks, whether thosehaving five tracing-edges 11", Fig. 37, or those having only one, areconnected by means of their axles with a washer h, (see Fig. 38,)applied to the extremity of the latter, Figs. 37 and 38. This washerserves, also, to hold the piece for the purpose of lifting it or toinsert the axle in the fixed bearing 1' fitted to the anteriorcross-piece of the frame U. The ruling-disk once in its place, it isfixed there in the way described by turn-.

ing the crank 11'. The frame U is surmounted at each side by a piece111/, in the form of a bridge, each end of which is traversed byathumbscrew 02/. When thehead of one of the screws 71' is turned, the shorterarm of one of the bell crank springs o', pivoted on mf', is acted upon.The longer arms act in their turn on the movable bearings u" of thepivots of the axle w" of the roller S and tend to push the latteragainst the surface of the ruling-disk 1", Fig. 37, or 3'', Fig. 38,when the screws 71/ receive a descending movement. As the ruling-disk,drawn along by the transfer movement of the sliding block applied to themain carrier, travels over the surface of the prepared paper intended toreceive prints while turning around its axis this transport movement, asmentioned above,

is accompanied by a transport movement of the inking-roller in thedirection of its axis, which movement has the effect of contributing tothe preservation of the inking-roller itself, as it thus wears itselfuniformly on all its lateral surface. In the support B joined, as hasbeen said, to the arms V Z, and consequently to the plate T, through themedium of the cross-piece O, enters the thumb-screw "A, which transmitsits pressure through the medium of the bent spring 19 to anothercross-bar P placed beneath 19' and form- IIO ing part of the frame U. Itis thus seen that all that is required is to turn the head of the screwA when I desire to augment or diminish the pressure which theruling-disk exerts on the prepared surface destined toreceiveimpressions. In short, when the screw A is lowered all that partof the frame U which is situated to the left of the points 5, aroundwhich this frame pivots, is depressed. The movement of A is resorted toonly when the ruling-disk remains in constant contact with the preparedsurface, and all that is in question is to modify the pressure on theformer. On the contrary, to detach the ruling-disk entirely from thesheet or to re-establish their contact the knob D is used, which also ismounted on the same bearer B and provided along its lower base with aninclined surface resting on the rod q, joined to the stem E, andconsequently to the frame U. When the knob D is pressed. so as to lowerq, that part of the frame U which is situated to the right of the pivotss" is also lowered, and consequently that situated to the left (thedisks 2'' or 3'' included) is raised and detached from the preparedsurface in such a manner as to permit the displacement of the slidingblock and of the ruling device attached to it without leaving any tracewhatever on the said surface. 7

The edges of the ruling-disks 11", as well as the prepared surface, notbeing bodies absolutely and geometrically rigid, but formed necessarilyof elastic substances, the shape of which is altered when subjected to acertain amount of pressure, it follows that the contact between theruling-disk and the sheet which is to receive impressions does not takeplace along a geometrical line, (the generating-line of the cylindricalsurface of the disk which lies in its tangential plane,) but along ahorizontal flat surface having an appreciable width. Wherefore, insteadof obtaining points or lines on the paper, I obtain small lines or smallrectangles. It is of the greatest importance to individuate the extremepoints of the lines and of the rectangles with the utmost exactness, inorder that all the lines traced by the ruling-disk maybe prevented frompassing beyond the points at which they ought to stop or from stoppingshort of these points. This object is obtained by means of the pointerwith movable branches 8 25, these branches being capable of approach toor separation from one another, according to the thickness of the lineswhich the ruling-disk is prepared to trace by means of the handles 2526, forming part thereof.

The printing device, (Fig. 22, exterior lateral elevation; Fig. 23,front elevation; Fig. 24, vertical section passing by the longitudinalplan of the center.)-This apparatus is mounted in the sliding block L,Figs. 15, 16, and 17, in exactly the same manner as in the case of theruling devicethat is to say, by adjusting the plate R, Fig. 27, on theplate with its t ype-bar.

P, Figs. 15 and 17, by means of the screw Q.

The printing device consists of four principal parts, which are asfollows:

First. The frame R. (Seen in exterior lateral view at Fig. 22,in sectionpassing along its center longitudinal plane at Fig. 24', and in frontelevation at Fig. This frame is prolonged atits rear side by the slitplate, shown separately in plan, seen from above at Fig. 27, andserving, as above said, to adjust the whole apparatus on the slidingblock. The principal part of the frame is composed, as seen in thefigures, of two vertical and lateral walls R, following on both sidesthe abovementioned slit plate, these two large lateral walls beingjoined together by means of a cross-bar 6, Figs. 22 and 24.

Second. A stem it, Figs. 22, 23, and 24, in the form of a slide-boxpivoting on the fixed pins 8, Figs. 22 and 23, inserted in the walls ofthe bearer R.

Third. A slide 2;, Figs. 22 and 23, also represented separately in frontelevation, Fig. 26, and in transverse section, Fig. 25. slide o isinserted in the grooves, as seen at Figs. 22, 23, and 24, of the stem11. and can Thisslide in the interior of the latter, which, on

the contrary, is immovable so far as lateral movement is concerned andcan only rotate round the pins 5.

Fourth. The bar carrying the dies or types, which is shown separately atFigs. 28 to 35, which is independent of the rest of the apparatus andremovable, but which when used is inserted into the slide 1), as is, infact, shown at Figs. 22 and 23, where the printing device is showncompletely mounted and furnished The inclined position of the stem to ispreserved by the spring 0. (Shown in lateral elevation, Fig. 21, and infront,Fig. 23.) This inclination is controlled by the thumb-screw c Fig.22, inserted in 6, Figs. 22 and 2t, this latter piece being, as alreadystated, joined with the vertical walls of the frame R.

The slide 1; presents on its front face a rectangular smooth channel 1and an oblique slot .2. This latter passes through its entire thickness.'lhechannel 1 and theslotz' areintended to receive the type-bar,as willbeexplainedfartheron. Thesidesoftheslideoextenddownward by means of thearm a, Figs. 24 and 26 which is provided with a roller (1", Figs. 22,23, and 24, atits lower extremity. Two spiral springs b", Figs. 23 and2%, rest below on the stem it and are intended to push up theslide o,keeping it raised atv the upper extremity of its travel in the stem it.At one side of the frameli. is pivoted the indicatorf", which is a leverof the first order, bent at both ends, ending at its upper extremity ina roller g and terminating below in a point. This indicator is capableof receiving two different movements-that is to say, first, a transfermovement parallel to the axle on which it is pivoted, this movementbeing communicated to it by means of the knob-screw Z"; second,

a movement of rotation round its axle, which can be communicated to itby turning the thumb-piece i", which has on its interior base aninclined surface acting on the pin h", Fig. 23, against which the rollerg" is pushed by a bent spring. (Visible in Fig. 24.) On the side of thebearer R opposite the side on which is the indicator f" is fixed thescale 01." by means of the screw 'm". On this scale are traced spacescorresponding to the musical staff. The scale it can be changedaccording to the width of the staff which is used at agiven moment. Theinking-rollerS is ex actly like that employed in the ruling device,being also mounted on an axle so", having a threaded pivot on one sideand a cylindrical one on the other side, turning in their bearings 'r,of which one is threaded in such a manner as to serve, also, as a femalescrew. Figs. 28, 30, and 31 represent the two first lateral elevationsand the third a front elevation of the type-bars, which are fixed on theslide 1; of the printing device when it is desired to use the latter.The bar ends below in a fork, to the interior of which is pivoted theroller 1)", containing a seriesof dies or types corresponding with thedifferent notes, characters, or marks to be written. The roller p isshown separately in lateral elevation in plan seen from above and inplan seen from below in Fig. 34. The printing dies or types are insertedin radial compartments intended to receive them and kept in their placesby the coverq", which is shown separately in Fig. 35 (the upper portionof it) and is seen, also, in the lower part of Fig. 28, where the roller19 is shown turned toward the cover. The roller 1)" when rotating on thepivots inserted in the fork 0" can be stopped in as many positions astherearedies or types in the compartments into which it is subdivided.The cover q", Figs. 28 and 35, is furnished with notches, each one ofwhich corresponds to one of the said compartments. A pin s is pushed bythe spring 3'', Figs: 28 and 31, so as to enter-these notches, and whenit has been introduced therein it stops the rollerp'" in whateverposition may be desired. Each of the types or dies contained in theroller can be placed in a position corresponding to the impression bymeans of the finger-piece. 7', Figs. 22, 23, 28, 30, and 31; (Seen,also, in elevation, in plan seen from above, and in plan seen from belowin Fig. 33.) The finger-piece 'r is provided below with a spur-wheel.The roller p" carries in its turn a concentric crown-wheel. Motion iscommunicated between these two toothed wheels by the shaft Figs. and 3i,and the pinions mounted on the latter. The finger-piece 0" (shown inplan as seen from above, in elevation, and in plan seen from below atFig. 33) has cut in its upper surface, as on that of a dial, signs orcharacters corre= sponding to those contained in the roller p". Fig. 33(the upper portion) and Fig. 35 (the middle and lower portions) presentas specimens some of the signs which may be found on the upper face of rand which correspond to as many ditferent characters, numbers, andmusical signs situated in the periphery of the roller 13''. The bar 0 isprovided with an index or pointer to". The index travels the plane uppersurface of the finger-piece r in such a manner that the person who turnsthe finger-piece r sees at a glance which (lie or type in the roller p"is at any given moment brought to the proper posit-ion for leaving itsmark on the paper. The two curved plates o" 1)" protect the types whilethe type-bar is being handled. The bar 0" carries the headed screw 2"and the adjusting-screws x". The usual type-bar, Figs. 28, 30, and31, isreplaced, when necessary, by the bar represented in Fig. 29, which is sodisposed as to carry one sole die or type when this is of too greatdimensions to enter the roller 19'.

s may be seen on reference to Fig. 32, the musical notes and signs arecast in such a manner that their center of figure corresponds to thecenter of the square a", from which they project. The letters andnumbers, as they have no symmetrical axis, are cast so as to betangential to the borders of the squares b' c', Fig. 32, whether towardthe right or toward the left, according to the right or left directionwhich it is desired to follow while making up the composition. Thetype-bar is adjusted on the slide 4) by introducing the pins 2", Figs.28 and 3l,in the notch 2, Figs. 24 and 25, as may be seen in Fig. 22.The bar 0" then rests with two of its faces perpendicular to each otheragainst the two walls of the channel 1, Fig. 25, of the slide v',con1-prising the angle 2, Fig. 25, and consequently becomes a part of c.

When the printing device is to be employed in tracing musical notes andsigns, the fingerpiece '1'? of the type-bar, Figs. 22 and 23, islowered, and as a necessary consequence the slide 1;, until the typewhich is to be found in the roller 19" ready to give the impression isinked by coming in contact with the inkihg-roller S. In this operationof lowering the springs b" are pressed and suffice to reconduct theslide 1; and the finger-piece 1" into their original position the momentthe pressure on the finger-piece cases. The roller 19" exerts aneccentric pressure on the inking-roller S, which constrains the latterto rotate and present continually-renewed portions of its inked surfaceto the roller. Fidaily the entire system formed by the stem 11. and theslide 1; is made to rotate around the pivots s by overcoming theresistance of the spring 0" till it assumes a vertical position. Thisposition once obtained, the finger-piece r" and the slide 0' are againpressed downward, thus compressing the springs 12 till the type which isfound in its proper position leaves an impression on the prepared paper.In this latter descending vertical movement of the slide 2: along thestem u the roller a", united to the slide '0, travels too

